Stop using "which", which is not available on Amazon Linux

CMakeLists.txt

@@ -66,7 +66,7 @@ add_custom_command(
 )
 add_custom_command(
 	OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/syntax.auto.h
-	COMMAND cat ${CMAKE_CURRENT_BINARY_DIR}/syntax.include | ${CMAKE_CURRENT_SOURCE_DIR}/build-scripts/make-syntax-auto.sh >${CMAKE_CURRENT_BINARY_DIR}/syntax.auto.h
+	COMMAND cat ${CMAKE_CURRENT_BINARY_DIR}/syntax.include | ${CMAKE_CURRENT_SOURCE_DIR}/build-scripts/make-syntax-auto.sh ${SED} >${CMAKE_CURRENT_BINARY_DIR}/syntax.auto.h
 	DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/syntax.include
 )
 add_custom_command(
@@ -84,7 +84,7 @@ add_custom_command(
 add_custom_command(
 	WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
 	OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/stdlib.ngs.h
-	COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build-scripts/bin2c.sh lib/stdlib.ngs >${CMAKE_CURRENT_BINARY_DIR}/stdlib.ngs.h
+	COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/build-scripts/bin2c.sh ${SED} lib/stdlib.ngs >${CMAKE_CURRENT_BINARY_DIR}/stdlib.ngs.h
 	DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/lib/stdlib.ngs
 )
 

build-scripts/bin2c.sh

@@ -5,12 +5,7 @@
 
 set -e
 
-SED=sed
-
-# gsed - MacOS, sed - all the rest
-if which gsed >/dev/null;then
-	SED=gsed
-fi
+SED=$1
 
 if ! $SED --version >/dev/null 2>/dev/null;then
 	echo "Failed to assert GNU sed: failed running sed --version" >&2
@@ -22,7 +17,7 @@ if ! $SED --version | grep -iq 'GNU sed';then
 	exit 2
 fi
 
-file_name=$1
+file_name=$2
 var_name=$(tr /. __ <<eof
 $file_name
 eof

build-scripts/make-syntax-auto.sh

@@ -2,12 +2,7 @@
 
 set -eu
 
-SED=sed
-
-# gsed - MacOS, sed - all the rest
-if which gsed >/dev/null;then
-	SED=gsed
-fi
+SED=$1
 
 if ! $SED --version >/dev/null 2>/dev/null;then
 	echo "Failed to assert GNU sed: failed running sed --version" >&2